model <- glm(morning ~ time since arrival this dry season (days).,family=binomial(link='logit'),data=raw_data_1)
Error: unexpected symbol in "model <- glm(morning ~ time since"
below are the heading for my data:
Bear ID/
Date DMY/
sighting occurred in morning (0/1)/
time since arrival this dry season (days)
this is a sample of my data:
dput(head(raw_data_1,10))
structure(list(`Bear ID` = c("Cobalt", "Pazu", "Fang", "McQueen",
"Mushroom", "Umber", "Umber", "Fang", "Teto", "Eggplant"), `Date DMY` = structure(c(1463011200,
1464480000, 1464825600, 1464825600, 1465084800, 1466380800, 1466467200,
1467590400, 1468886400, 1470182400), tzone = "UTC", class = c("POSIXct",
"POSIXt")), `sighting occurred in morning (0/1)` = c(0, 1, 1,
0, 0, 1, 1, 0, 1, 1), `time since arrival this dry season (days)` = c(72,
89, 93, 93, 96, 111, 112, 125, 140, 155)), row.names = c(NA,
-10L), class = c("tbl_df", "tbl", "data.frame"))
I'm trying to carry out a logistic regression to model the probability of being seen in the morning relative to time since arrival this dry season. Massive R rookie, first model I have had to make.